I'm afraid the main expert here won't be writing anything, so as not to traumatize the public. :)
Day 1
Place three heroes in front of the dragons to "level up." One Barbarian gathers the entire army and attacks the thieves in the south, takes the gold, and attacks the ogres guarding the Shield and Sword. And one Warlock (who is offered right away) runs towards the defeated thieves and takes the chest on his last turn.
Day 2
The Barbarian (with the army) picks up the +2 and +3 artifacts and brings them to the castle.
The Warlock takes two more chests, and from his home castle, another hero is bought and the artifacts and army are given to one of the three heroes in front of the dragons.
Since we're not building much in the castle, theoretically, we can get an army of 150+ goblins, 5 wolves, 30+ orcs, 10 centaurs, and the Barbarian's stats with the artifacts will be 5-3-1-1... or, if we're counting on morale, there will be slightly fewer goblins and orcs, but instead of centaurs, there will be archers and peasants, and the hero's stats will be 4-4-1-1.
But even with a very good battle, the losses can be catastrophic, so that you then have to divide it into 3 squads to attack the enemy castles.
In general, if anyone has implemented this, then respect to them; I chose a slightly different tactic, although the strategy is the same.
P.S. It's a pity that no monsters join you :smile32: